Question about LG Televison & Video

1 Answer

LG 47LN5750-uh. replaced the main board. picture still blue, back lights are on but not picture. besides throw the tv in the ditch, what should I check next?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Welcome Back:

    Visited the website for 2 consecutive days.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 11 Answers

Either you have a bad panel or the T-con board is not processing the video to the screen. This is the board between the main board and the screen. There is one on E-bay for just under $35.00. Hope this Helps.:)

Posted on Apr 29, 2017

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

LG 50ln5700-uh led tv, sound no picture


Fault at its main digital board. No back-light inverter start voltage comes from it to the back-light inverter circuit. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Feb 14, 2017 | LG Televison & Video

1 Answer

Have a LG 47 inch tv. 47ln5750. When I power on the LG appears on screen then shuts off. took off the back cover and when I powered on I could see the LEDs flash. problem be led board? Or Led strips?


Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Oct 27, 2016 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

1 Answer

LG smart tv model number 47LN5750-UH. No picture but have sound. When I hold a flash light up I can see the menu screen. Been told it's a driver...


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Oct 26, 2016 | LG Televison & Video

1 Answer

Tv turns on and screen flickers on for a second and then turns off, whats the issue?


Sounds like Back - light problem.Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis.If you wish to get some details; check the site linked here.Surf the site with patience.Pull up older posts.It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS].In such cases, the power supply board might need replacement.To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself.If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board.If this is the case, you have to replace the main board.

Jul 28, 2016 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

1 Answer

Lg 47ln5750-uh lost picture has sound can see faint picture with flashlight shined on screen


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board

Mar 10, 2016 | LG Televison & Video

2 Answers

Tv flashes good picture for 1/2 second and then dark. Picture is there but really dark. How can I tell if it is an led strip or the power supply board


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.

Jan 28, 2016 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

1 Answer

LG TV 47LN5750 Backlight Out


Back - light problem? Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Sep 14, 2015 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

1 Answer

Fix lg led tv with no picture but has sound


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
Some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Sep 04, 2015 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

The Knight
The Knight

Level 3 Expert

74136 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18392 Answers

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...